Hollow body of fibrous material.



1. C. WA RD.

HOLLOW BODY OF FIBROUS MATERIAL.

APPLICATION FILED 050.111.1914.

Patented 001;. 12', 1915 Mfr/1155555. [AWE/V701? ATTORNEY the trap s'rarns Parasite @FFTQE.

JOHN G. WAR-D, OF QUINCY, MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO WILLIAM J. BIG'LEY, OF SOMERVILLE, MASSACHUSETTS.

noLLow BODY or Frances MATERIAL,

Specification of Letters Patent.

Patented o t. 12, 1915.

- Application filed. December1-5, 1914. Serial No. 877,437.

To all whom it may concern:

Be it known that 1, JOHN C. WVARD, a citizen of the United States, residing in Quincy, in the county of Norfolk and State of Massachusetts, have invented an Improvement in Hollow Bodies of Fibrous Material, of which the following description, in connection with the accompanying drawings, is a specification, like characters on the drawings representing like parts.

This invention. relates to a hollow body of fibrous material and is herein shown as embodied in a cone for use as a core or support upon which yarn, thread, string or the like is wound to be used in knitting, braiding and like machines. As now commonly constructed, cones for this purpose are made from blanks of paper or like fibrous material in sheet form, which are out up by suitable dies into blanks, which are folded and have their sides overlapped and cemented together.

The present invention has for its object to provide a paper or other fibrous cone which is stronger and less expensive than those heretofore produced, and upon which the yarn, thread or string can be more easily wound, and from which it may be more easily unwound, as will be described.

To this end, the cone is made from a strip or substantially continuous length of paper or other fibrous material, which is provided on one surface with a layer of adhesive material and is provided on one side or edge with a fold, which is bent over upon the coated surface so as to cover the latter surface for a portion of its width and to leave another portion of the coated surface exposed. The strip thus formed is wound upon a mandrel into the form of a cone, with the uncoated surface of the strip next to the mandrel, and said strip is wound upon the mandrel, so that the exposed coated portion of the outer side of the strip of one convolution will be covered by the upper or folded portion of the next adjacent convolution which is cemented. to said coated sur face. In this manner a superior cone is formed at a minimum expense, as the cone is composed of a series of convolutions with two thicknesses of paper of one convolution cemented to one layer of an adjacent convolution, which construction gives a stronger cone and forms a series of steps for the thread, yarn or string to engage as the latter is wound upon the cone, and which facilitates the unwinding of said thread, yarn, etc.

These and other features of the invention will be pointed out in the claims at the end of this specification.

Figure 1 is an elevation of a cone embodying this invention. Fig. 2, a detail of a portion of the strip from which the cone shown in Fig. l is made, and F i-g. 3, an elevation of a modification to be referredto.

Referring to the drawing, or represents a cone of paper or other fibrous material, which is formed from a continuous length or strip Z), shown separately inFig. 2. The strip Z) is provided along one edge with a foldlO which'is narrower than the body portion 12 of the said strip, and is cemented to said body portion by adhesive material applied to the outer side of the strip 5 and indicated by the heavy black line 13in Fig. 2. The coating 13 of adhesive material is applied to the strip 6 before it is folded. The fold 10 being narrower than the width of the body portion 12 leaves the coating 13 exposed on the lower part or half of the strip, and in condition to adhere to the in ner surface of said strip, when the latter is helically wound about a 'mandrel (not 'shown) to form the cone a shown in Fig. 1.

It will be observed, that the cone a is composed of a series of convolutions helically arranged, with the folded portion 10 and a part of the body portion 12 of one convolution cemented to the unfolded or lower part of the body portion 12 of the next preceding convolution, so that at each convolution of the cone, the latter is composed of three thicknesses or layers of paper which are cemented together, thereby making a strong and durable cone. A plurality of convolutions of the cone at its top and base may be covered with shellac to impart a finish to the cone, and the latter may be colored at one or both ends to identify the count or number of the yarn, thread or string.

The cone may be reinforced at its apex by a cross piece 15, see Fig. 3, which is formed by bending the end of the strip 6 when the latter is started to be wound upon the mandrel, and said cross piece may have its end secured to the first convolution by the shellac.

It will be observed that the series of helical convolutions in the cone form a series of steps 16 which serve to facilitate the winding of the yarn, etc. upon the cone, when the yarn is first applied, and also facilitate the unwinding of the yarn when the cone has been partially unwound or exhausted. This is especially true when the finer yarns are used. It will also be observed that there is no waste of stock from which. the cone is made, and therefore the cost of the cone is materially reduced.

It will be observed that the inner and outer surfaces of the completed cone are free from gum or other adhesive, as the inner surface of the completed cone is formed by the uncoated inner surface of the convolutions, while the outer surface of the cone is formed by the uncoated surface of the fold 10. If desired, the end convolutions may be mechanically secured together by wire sta ples or otherwise.

In the present instance, I have shown the invention as embodied in a hollow body in the form of a cone, which is particularly serviceable for use in winding machines, but it is not desired to limit the invention to this particular form of hollow body, as it is evident that the strip 7) could be wound into cylindrical or other form by substituting a cylindrical or other mandrel for a conical mandrel.

Claims:

1. A hollow body composed of a strip of fibrous material folded at one edge to form a folded portion and a body portion of Copies of this patent may be obtained for convolutions of a strip of fibrous material having on one surface a coating of adhesive material and provided at one edge with a fold of narrower width than the body portion of said strip, the folded portlon of one convolution being cemented to the exposed portion of the neXt preceding convolution by the adhesive coating thereon.

4. A hollow body composed of a strip of fibrous material folded at one edge and wound into a plurality of overlapping convolutions, the convolutions between the ends of said body having three layers of fibrous material cemented together.

In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN C. WARD.

Witnesses:

JAS. H. CHURCHILL, J. MURPHY.

five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

